java想将值发送到cmd，不知道命令或如何发送

Question

好的，我有一个问题。请求URL的exe文件，当我在http链接中提示时，它会告诉我网站的标题，感觉就像一个小而简单的脚本，所以我想循环浏览使用此链接的网站列表。exe文件，所以我尝试首先使用批处理文件。但似乎很难通过链接，所以我尝试了powershell，因为我在某个地方读到过，如果我使用击键，应该会更容易，但最终使用java使其更容易。但是，我不明白如何将列表中的链接“发送”到已编译的列表中。exe文件，同时运行。这是我第一次画的

-> start bat-program.
-> ->call for start .exe file 
-> ->wait 2sec or when ready.
-> ->send URL into .exe 
-> ->press enter command
-> ->wait 2sec
-> ->press exit command
-> ->wait 2sec
-> loop....

我能够使用bat或java在cmd或powershell中启动/循环程序，但在应用程序运行时不发送值。。感觉有点傻：(

谢谢你给我的建议，我怎样才能让它工作

Answer 1

    public class Wrapper {

        public static void main(String[] args) throws IOException, InterruptedException {

            ExecutorService executor = Executors.newSingleThreadExecutor();
            for (String url : Arrays.asList("google.com/", "github.com/")) {
                Process process = new ProcessBuilder("compiled.exe").start();

                //process stdin / stderr streams asynchronously.
                executor.submit(() -> {
                    readStream((String s) -> System.out.println("STDOUT::" + s), process.getInputStream());
                });
                executor.submit(() -> {
                    readStream((String s) -> System.out.println("STDERR::" + s), process.getErrorStream());
                });

                Thread.sleep(2000);//wait 2 sec
                provideCommandInput(process, url);//url with enter
                Thread.sleep(2000);//wait 2 sec
                provideCommandInput(process, "exit");//exit with enter            
                Thread.sleep(2000);//wait 2 sec

                process.destroy();
            }
            executor.shutdown();
        }

        //Read a stream
        public static void readStream(Consumer<String> lineConsumer, InputStream is) {
            try (BufferedReader buffer = new BufferedReader(new InputStreamReader(is))) {
                buffer.lines().forEach(lineConsumer);
            } catch (UncheckedIOException | IOException ex) {
                //broken pipe.
            }
        }

        //provide input to the given process
        private static void provideCommandInput(Process proc, String command) throws IOException {
            final String newline = System.lineSeparator();
            proc.getOutputStream().write((command + newline).getBytes());
            proc.getOutputStream().flush();
        }
    }